Out of the given options, choose the most appropriate word/set of words to fill in the blank.
An unforeseen difficulty_____.

Correct option is D

The correct option to fill in the blank is (d) has arisen.
Explanation: “An unforeseen difficulty” is singular, so we use “has.” The past participle of “arise” is “arisen,” which is used with “has” to form the present perfect tense.
Grammatical rule used: Present perfect tense = has/have + past participle. For singular subjects, use “has.”
Rule in Hindi: जब कार्य हाल ही में हुआ हो और subject singular हो, तो has + क्रिया की तीसरी फॉर्म का प्रयोग किया जाता है।
Meanings and explanations of other options:
· (a) have arise: Incorrect – “have” is for plural subjects, and “arise” is base form.
(गलत – 'have' plural के लिए होता है और 'arise' base form है)
· (b) have arisen: Incorrect – “have” is plural, but subject is singular.
(गलत – 'have' plural के साथ आता है जबकि subject singular है)
· (c) has arise: Incorrect – “arise” is base form, needs past participle “arisen.”
(गलत – 'has' के साथ verb की तीसरी फॉर्म 'arisen' आनी चाहिए)